# How do you simplify #2/3 + 1/5 - 1/2#?

##### 1 Answer

#### Explanation:

5 will be a factor of any number (apart from 0) that end in 5 or 10

Unfortunately a number ending with 5 can not be divided exactly by 2. So the common denominator has to be a one of the 'tens'

Note that

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Multiply a number by 1 and you do not change its value. You can however change the way it looks.

Example:

The inherent value is still three but it looks different.

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Write as: